Image brick updates
Audio Clip brick updates
Audio component updates
Updated thumbnail and removed accidental css file addition.
fixes #2123 properly display first card after a publish
Playback rate is a listener also, and persists when changing audio source.
Bug 1074266 - Update to webmaker-locale-mapping v0.0.5
No bug - Bump the version to match the tag
Merge pull request #2288 from flukeout/audioupdates

Audio Brick updates
Merge pull request #2285 from flukeout/imagefixestwo

Image brick updates
fixes #2286 fixed leaking vars handlerType and headingText
Merge pull request #2290 from ScottDowne/t2123

fixes #2136 properly display first card after a publish
leaking url variable
nuked something I should not have
removed a line I didn't need, I didn't see a var defined in the function params
Merge pull request #2296 from ScottDowne/t2289

leaking url variable
Merge pull request #2295 from ScottDowne/t2286

fixes #2286 fixed leaking vars handlerType and headingText
Convert designer/js/utils to commonjs

* converted the utils lib to commonjs module format from requirejs.
* replaced the implementation of `getQueryStringVariable` with a version
based on `querystring` from the node standard library.
* started a test suite.
Convert designer/js/togetherjs to commonjs
Fix leaky variable, typo'd variable name.